JP2023514763A - DATA TRANSMISSION METHOD, TERMINAL DEVICE, AND STORAGE MEDIUM - Google Patents

Abstract

The present invention relates to the technical field of communication, and provides a data transmission method, terminal equipment, and storage medium. A data transmission method provided by an embodiment of the present invention comprises determining a target logical channel from one or more logical channels according to sidelink resource configuration indication information and one or more logical channel attribute indication information. and transmitting data of the target logical channel using the sidelink resources, wherein the configuration indication information is used to indicate configuration characteristics of the sidelink resources, and the attribute indication information of each logical channel is used for each Used to indicate whether the logical channel's data requires HARQ feedback. The data transmission method provided by the embodiments of the present invention can be adapted to the data retransmission mechanism based on HARQ feedback.

Description

TECHNICAL FIELD The present invention relates to the technical field of communication, and more specifically to a data transmission method, terminal equipment, and storage medium.

With the development of Internet of Things (IoT) technology, device-to-device (D2D) communication has become a relatively popular communication method. Among them, Sidelink is a new communication link introduced to support D2D communication.

Currently, in the latest D2D research, engineers are considering introducing a data retransmission mechanism based on hybrid automatic repeat request (HARQ) feedback on the sidelink.

How to achieve data transmission on the sidelink, so as to adapt the data transmission method to the above HARQ feedback-based data retransmission mechanism, is an urgent problem to be solved.

Embodiments of the present invention provide a data transmission method, a terminal device and a storage medium.

According to a first aspect, there is provided a data transmission method, the method comprising:
determining a target logical channel from the one or more logical channels according to sidelink resource configuration indication information and one or more logical channel attribute indication information;
transmitting data for the target logical channel using the sidelink resource;
The configuration indication information is used to indicate configuration characteristics of the sidelink resources, and the attribute indication information for each logical channel indicates whether the data for each logical channel requires hybrid automatic repeat request (HARQ) feedback. Used to indicate whether

According to a second aspect, a terminal device is provided, the terminal device comprising:
a determination module configured to determine a target logical channel from the one or more logical channels according to sidelink resource configuration indication information and one or more logical channel attribute indication information;
a transmission module configured to transmit data of the target logical channel using the sidelink resource;
The configuration indication information is used to indicate configuration characteristics of the sidelink resources, and the attribute indication information of each logical channel is used to indicate whether data of each logical channel requires HARQ feedback. be done.

According to a third aspect, there is provided terminal equipment, the terminal equipment comprising a memory and a processor, said memory storing a computer program, said processor executing said computer program, said first perform the steps of the method described in the aspect of .

According to a fourth aspect, there is provided a computer readable storage medium, in which a computer program is stored, wherein when said computer program is executed by a processor, said first The steps of the method described in the aspect are performed.

According to a fifth aspect, there is provided a chip comprising programmable logic circuits and/or program instructions, wherein when said chip is executed the steps of the method described in said first aspect are performed. be done.

The beneficial effects provided by the technical solutions provided by the embodiments of the present invention include at least the following.

The UE determines a target logical channel from one or more logical channels according to the sidelink resource configuration indication information and the one or more logical channel attribute indication information, and uses the sidelink resource to perform the target logical channel data is transmitted, this configuration indication information is used to indicate the configuration characteristics of this sidelink resource, and each logical channel attribute indication information indicates whether the data of each logical channel requires HARQ feedback. used to indicate In this way, the UE can determine the data that can be transmitted over the sidelink resource according to the configuration characteristics of the sidelink resource and whether the data of the logical channel requires HARQ feedback. data transmission can be adapted to a data retransmission mechanism based on HARQ feedback.

1 is a schematic diagram of an application scenario of a data transmission method provided by an embodiment of the present invention; FIG. FIG. 4 is a schematic diagram of an application scenario of another data transmission method provided by an embodiment of the present invention; 4 is a flowchart of a data transmission method provided by an embodiment of the present invention; 1 is a block diagram of a terminal device provided by an embodiment of the present invention; FIG. FIG. 4 is a block diagram of another terminal device provided by an embodiment of the present invention; 1 is a block diagram of a terminal device provided by an embodiment of the present invention; FIG.

In order to make the objectives, technical solutions and advantages of the present invention clearer, the embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings.

With the development of Internet of Things (IoT) technology, device-to-device (D2D) communication has become a relatively popular communication method.

In the 3GPP organization, D2D communication has undergone several different research stages, mainly proximity based service (ProSe, Proximity based Service) research stage, Internet of Vehicles (V2X) research stage. , and wearable device-to-device communication (FeD2D) research phase.

Among them, ProSe mainly targets public safety services, V2X mainly targets vehicle-to-vehicle communication and vehicle-to-vehicle communication services, and FeD2D mainly targets scenarios where wearable devices access networks via mobile phones. and is primarily intended for communication between low mobility and low power devices.

In order to support D2D communication, the communication system introduces a sidelink in addition to the conventional uplink (UPlink) and downlink (Downlink), and the sidelink is used for D2D communication between devices. communication link.

A data retransmission mechanism based on Hybrid Automatic Repeat reQuest (HARQ) feedback is introduced on the sidelink. "HARQ feedback-based data retransmission mechanism" refers to the data receiving device providing HARQ feedback to the data transmitting device and reporting to the transmitting device whether the data was received correctly via the HARQ feedback. If HARQ determines that the receiving device has not received the data correctly, the transmitting device retransmits the data to the receiving device.

The data transmission method provided by the embodiments of the present invention can be adapted to the "data retransmission mechanism based on HARQ feedback" and transmits data on the sidelink.

Next, an embodiment of the present invention briefly introduces the transmission process of data in the sidelink. (RLC, Radio Link Control) and Media Access Control (MAC, Media Access Control) layers. A Service Access Point (SAP, Service Access Point) between the RLC layer and the MAC layer is a logical channel. SAP refers to a logical interface that communicates between two adjacent protocol layers with each other.

In the process of transmitting data on the sidelink, the MAC layer of the communication device can map the data of the logical channel to the sidelink resource and transmit the data of the logical channel over the sidelink resource.

The following briefly describes the implementation environment for the data transmission method provided by the embodiments of the present invention.

FIG. 1 illustrates one possible implementation environment for embodiments of the present invention. As shown in FIG. 1, the implementation environment includes a first User Equipment (UE, User Equipment) 101 and a second UE 102, which are connected via a sidelink. can perform D2D communication.

FIG. 2 illustrates another possible implementation environment for embodiments of the present invention. As shown in FIG. 2, the implementation environment includes a first UE 101, a second UE 102, and a base station 103, where the first UE 101 and the second UE 102 communicate D2D via sidelinks. and the first UE 101 may transmit data to the base station 103 via the uplink and receive data transmitted by the base station 103 via the downlink.

For convenience of explanation, it should be noted that the first UE 101 is considered as the data transmitting device and the second UE 102 is considered as the data receiving device in the embodiments of the present invention.

In practical applications, the first UE 101 and the second UE 102 can be smartphones, computers, multimedia players, electronic readers, wearable devices, sensor devices, vehicles or in-vehicle terminals, and so on. Base station 103 may be a gNB or an eNB.

FIG. 3 shows a flowchart of a data transmission method provided by an embodiment of the present invention. This data transmission method may be applied to the first UE 101 in the implementation environment shown in FIG. 1 or FIG. As shown in FIG. 3, this data transmission method may include the following steps.

Step 301: The first UE determines a target logical channel from the one or more logical channels according to the sidelink resource configuration indication information and the one or more logical channel attribute indication information.

Specifically, the sidelink resource of step 301 (for convenience of explanation, referred to as the “target sidelink resource” in the method embodiments below) refers to the communication resource in the sidelink, and the communication resource from the first UE to the second is used to transmit data sent to the UE of the

In one possible implementation, this target sidelink resource may be a resource assigned to the first UE by the base station.

Alternatively, this target sidelink resource may be a resource dynamically allocated to the first UE by the base station. For example, a first UE may send a scheduling request to the base station via the uplink before sending data to a second UE. After receiving the scheduling request, the base station may allocate target sidelink resources to the first UE according to the scheduling request. A first UE may transmit data to a second UE via the assigned target sidelink resources.

Alternatively, this target sidelink resource can also be a resource semi-statically assigned to the first UE by the base station. A first UE may transmit data to a second UE via target sidelink resources semi-statically assigned by a base station.

In another possible implementation, this target sidelink resource may be a resource selected by the first UE from the sidelink resource pool.

Optionally, the sidelink resource pool includes a plurality of sidelink resources, and the first UE selects a target sidelink resource from the plurality of sidelink resources to perform a first transmission via the target sidelink resource. Data can be sent to 2 UEs.

The configuration indication information described in step 301 is used to indicate configuration characteristics of the target sidelink resource, which may be configuration characteristics related to HARQ feedback.

Optionally, if the target sidelink resource is a resource allocated to the first UE by the base station, the first UE transmits to the first UE by the base station in the process of allocating the target sidelink resource. received configured configuration information.

Optionally, if the target sidelink resource is a resource selected by the first UE from a sidelink resource pool, the first UE can obtain configuration indication information from this sidelink resource pool.

In any embodiment of the invention, the configuration indication information may be sent by the lower layers of the first UE to the upper layers of the first UE. For example, the configuration indication information may be sent by the physical layer (PHY layer) of the first UE to the MAC layer of the first UE. In this case, step 301 may be performed by a higher layer (eg MAC layer) of the first UE.

In any embodiment of the invention, the configuration directive information may indicate at least one of the following information A1, B1 and C1.

Information A1: Whether the target sidelink resource has a corresponding physical sidelink feedback channel (PSFCH) resource configured.

PSFCH is a physical channel used on the sidelink to transmit HARQ.

If the target sidelink resource is configured with a corresponding PSFCH resource, after the first UE transmits data to the second UE via this target sidelink resource, the second UE will send the corresponding PSFCH HARQ feedback may be performed to the first UE over the resources. Conversely, if the target sidelink resource is not configured with a corresponding PSFCH resource, after the first UE transmits data to the second UE via this target sidelink resource, the second UE will HARQ feedback cannot be performed for one UE.

Information B1: Whether the target sidelink resource has a corresponding physical uplink control channel (PUCCH) resource configured.

PUCCH is a physical channel used on the uplink to transmit control data.

In one possible case, the first UE determines, based on the HARQ fed back by the second UE, that the second UE has not successfully received the data transmitted by the first UE. , the first UE needs to send a scheduling request to the base station via the PUCCH resource. As a result, the base station allocates sidelink resources to the first UE according to this scheduling request, and the first UE retransmits data to the second UE via the sidelink resources allocated by the base station. be able to.

According to the above description, if the target sidelink resource is configured with a corresponding PUCCH resource, the first UE will not be able to successfully receive the data transmitted by the first UE to the second UE. A scheduling request can be sent to the base station over the PUCCH resource to perform retransmission of data when the time comes. If the target sidelink resource does not have a corresponding PUCCH resource configured, the first UE cannot send a scheduling request to the base station and the first UE cannot perform data retransmission.

Information C1: Type of data that can be carried by the target sidelink resource.

The types may include at least one of a type requiring HARQ feedback and a type not requiring HARQ feedback.

Additionally, the attribute indication information for each logical channel can indicate whether the data for each logical channel requires HARQ feedback.

In practical applications, the types of data in different logical channels are different. In one possible case, the receiving device needs to perform HARQ feedback for some logical channel data, e.g., for some data with high importance, the receiving device needs to perform HARQ feedback. However, some logical channel data does not require the receiving device to perform HARQ feedback, eg, some less important data does not require the receiving device to perform HARQ feedback.

Attribute indication information for each logical channel is used to indicate whether the data for each logical channel requires HARQ feedback.

Step 302: The first UE uses the target sidelink resource to transmit data of the target logical channel.

As described above, in step 301, the first UE may determine a target logical channel from one or more logical channels according to configuration indication information and attribute indication information of one or more logical channels. After determining the target logical channel, the first UE may map the data of the target logical channel to the target sidelink resource so as to transmit the data of the target logical channel over the target sidelink resource. Alternatively, the first UE can map the data of the target logical channel to the target sidelink resource via MAC layer.

As noted above, the configuration indication information may be sent from the lower layers of the first UE to the upper layers of the first UE. In this case, step 301 may be performed by higher layers of the first UE. That is, the target logical channel may be determined by higher layers of the first UE. In this case, after determining the target logical channel, the upper layers of the first UE can send attribute indication information of the target logical channel to the lower layers. For example, if step 301 is performed by the MAC layer of the first UE, the MAC layer may send attribute indication information of the target logical channel to the PHY layer after determining the target logical channel.

a lower layer of the first UE, after receiving the attribute indication information of the target logical channel, generates HARQ feedback indication information based on the attribute indication information, maps the HARQ feedback indication information to the target sidelink resource; HARQ feedback indication information may be sent to the second UE via the target sidelink resource. This HARQ feedback indication information is used to indicate whether the second UE should perform HARQ feedback to the first UE.

For example, the HARQ feedback indication information can occupy 1 bit. If the HARQ feedback indication information is 0, it indicates that the second UE does not need to perform HARQ feedback to the first UE, and if the HARQ feedback indication information is 1, the second UE indicates that the first UE. Indicates to the UE that HARQ feedback should be performed.

Embodiments of the present invention provide three exemplary schemes for the first UE to determine the target logical channel from each logical channel, and the following embodiments of the present invention describe the three schemes one by one. explain.

First scheme: If the information indicated in the configuration indication information satisfies a first condition, the first UE logic indicates from one or more logical channels that the attribute indication information does not require HARQ feedback. Determine the channel as the target logical channel.

Optionally, the first UE may determine one or more logical channels whose attribute indication information indicates that HARQ feedback is not required as target logical channels. For ease of explanation, the "logical channel whose attribute indication information indicates that HARQ feedback is not required" is abbreviated as the first logical channel in the following method embodiments.

Optionally, the first condition can be at least one of the following conditions A2, B2 and C2.

Condition A2: The configuration indication information indicates that the target sidelink resource is not configured with a corresponding PSFCH resource.

As described above, if the target sidelink resource is not configured with a corresponding PSFCH resource, after the first UE transmits data to the second UE via the target sidelink resource, the second UE HARQ feedback cannot be performed for the first UE. Considering this situation, if the target sidelink resource is not configured with a corresponding PSFCH resource, the first UE selects the first logical channel as the target logical channel and, via the target sidelink resource, Data for the target logical channel can be sent.

Condition B2: The configuration indication information indicates that the target sidelink resource does not have a corresponding PUCCH resource configured.

As described above, if the target sidelink resource does not have a corresponding PUCCH resource configured, the first UE cannot achieve data retransmission. The second UE does not need to perform HARQ feedback to the first UE, as the first UE cannot achieve data retransmission. Considering this situation, if the target sidelink resource is not configured with a corresponding PUCCH resource, the first UE selects the first logical channel as the target logical channel and, via the target sidelink resource, Data for the target logical channel can be sent.

Condition C2: The configuration indication information indicates that the type of data that can be transmitted by the target sidelink re-resource is a type that does not require HARQ feedback.

Since the target sidelink resource can only carry data that does not require HARQ feedback, in this case the first UE selects the first logical channel as the target logical channel and transmits the target logical channel via the target sidelink resource. Channel data can be sent.

According to the above description, if the configuration indication information indicates that the target sidelink resource has no corresponding PSFCH resource configured, the first UE determines the first logical channel as the target logical channel. and the configuration indication information indicates that the target sidelink resource does not have a corresponding PUCCH resource configured, the first UE may determine the first logical channel as the target logical channel. , if the configuration indication information indicates that the type of data that can be transmitted by the target sidelink resource is a type that does not require HARQ feedback, the first UE determines the first logical channel as the target logical channel; can do.

Second scheme: If the information indicated in the configuration indication information satisfies a second condition, the first UE logic indicates from one or more logical channels that the attribute indication information requires HARQ feedback. Determine the channel as the target logical channel.

Optionally, the first UE may determine one or more logical channels whose attribute indication information indicates that HARQ feedback is required as target logical channels. For ease of explanation, in the method embodiments below, the “logical channel indicating that the attribute indication information requires HARQ feedback” is abbreviated as the second logical channel.

Optionally, the second condition indicates that the configuration indication information indicates that the type of data that can be transmitted by the target sidelink re-resource is a type that requires HARQ feedback.

Since the target sidelink resource can only carry data that requires HARQ feedback, in this case the first UE selects the logical channel that requires HARQ feedback as the target logical channel and transmits the data via the target sidelink resource. data for the target logical channel.

According to the above description, if the configuration indication information indicates that the type of data that can be transmitted by the target sidelink re-resources is the type that requires HARQ feedback, the first UE uses the second logical channel can be determined as the target logical channel.

Third scheme: If the information indicated in the configuration indication information satisfies the third condition, the first UE targets the first logical channel or the second logical channel from one or more logical channels. Decide on a channel.

That is, in the third scheme, the first UE may select one of the first logical channel and the second logical channel as the target logical channel.

Optionally, the third condition can be at least one of the following conditions A3, B3, and C3.

Condition A3: The configuration indication information indicates that the types of data that can be transmitted by the target sidelink re-resources include types that require HARQ feedback and types that do not require HARQ feedback.

In this case, the first UE targets either the first logical channel or the second logical channel, because the target sidelink resource can carry both data requiring HARQ feedback and data not requiring HARQ feedback. It can be selected as a logical channel and transmit the data of the target logical channel over the target sidelink resource.

Condition B3: The configuration indication information indicates that the target sidelink resource is configured with the corresponding PSFCH resource.

As described above, if the target sidelink resource is configured with a corresponding PSFCH resource, after the first UE transmits data to the second UE via the target sidelink resource, the second UE , can perform HARQ feedback to the first UE via the corresponding PSFCH resource. Considering this situation, the first UE may select the first logical channel or the second logical channel as the target logical channel and transmit the data of the target logical channel via the target sidelink resource. .

In this case, the reason why the first UE is not restricted to select only the second logical channel as the target logical channel is that if such a restriction is made, if only the first logical channel is present, the first UE will not be able to use the target sidelink resources to transmit data, leading to waste of communication resources.

Condition C3: The configuration indication information indicates that the target sidelink resource is configured with the corresponding PUCCH resource.

As described above, if the target sidelink resource is configured with a corresponding PUCCH resource, if the second UE is unable to successfully receive the data transmitted by the first UE, the first UE uses the PUCCH A scheduling request may be sent to the base station via the resource, thereby performing data retransmission. If the target sidelink resource is configured with a corresponding PUCCH resource, the first UE can achieve data retransmission, so in this case the second UE performs HARQ feedback to the first UE. can do. Considering this situation, the first UE may select the first logical channel or the second logical channel as the target logical channel and transmit the data of the target logical channel via the target sidelink resource. .

Similar to above, in this case, the reason for not restricting the first UE to select only the second logical channel as the target logical channel is that when such restrictions are in place, only the first logical channel exists. If so, the first UE will not be able to use the target sidelink resources to transmit data, leading to waste of communication resources.

Note that in the third scheme, the first UE may preferentially determine the second logical channel as the target logical channel. In this way, data requiring HARQ feedback is preferentially transmitted when the target sidelink resources are suitable for transmitting data requiring HARQ feedback, thereby It is guaranteed to avoid data being affected by the lack of suitable sidelink resources.

In one embodiment of the present invention, "preferentially determining the second logical channel as the target logical channel" may include the following schemes.

First scheme: If there is no second logical channel for each logical channel, the first UE determines the first logical channel for each logical channel as the target logical channel.

In other words, the first UE can transmit data on the first logical channel via the target sidelink resource only if the second logical channel is not present on the first UE, and the second logical channel is not present on the first UE. If the logical channel exists on the first UE, the first UE is prohibited from transmitting data on the first logical channel over the target sidelink resource. In this way, preferential transmission of data of the second logical channel can be achieved.

Second method: If the first logical channel and the second logical channel exist simultaneously in one or more logical channels and the priority of the first logical channel and the second logical channel are the same, then the One UE determines the second logical channel as the target logical channel.

According to the above description, if the configuration indication information indicates that the target sidelink resource is configured with the corresponding PSFCH resource, the first UE preferentially selects the second logical channel as the target logical channel. and the configuration indication information indicates that the target sidelink resource is configured with a corresponding PUCCH resource, the first UE preferentially selects the second logical channel as the target logical channel and the configuration indication information indicates that the types of data that can be transmitted by the target sidelink resource include types that do not require HARQ feedback and types that require HARQ feedback, the first UE can preferentially determine the second logical channel as the target logical channel.

Third scheme: The first UE can determine the target logical channel according to the priority of the first logical channel and the second logical channel. Optionally, if the first logical channel and the second logical channel exist simultaneously in the one or more logical channels and the priorities of the first logical channel and the second logical channel are different, the first UE determines the logical channel with the higher priority as the target logical channel.

Although the steps of the flowchart of FIG. 3 are displayed sequentially according to the arrows, it should be understood that these steps are not necessarily performed in the order indicated by the arrows. Unless explicitly stated herein, execution of these steps is not limited to a strict order, and these steps may be executed in other orders. Further, at least some of the steps in FIG. 3 may include multiple substeps or multiple stages. These substeps or stages are not necessarily performed and completed at the same time, but may be performed at different times. Nor is the order in which these substeps or stages are necessarily executed sequentially, but may be executed sequentially or alternately with other steps or at least some of the substeps or stages of other steps.

FIG. 4 shows a block diagram of terminal equipment 400 provided by an embodiment of the present invention. As shown in FIG. 4 , terminal equipment 400 may include determination module 401 and transmission module 402 .

The determining module 401 is configured to determine a target logical channel from one or more logical channels according to the sidelink resource configuration indication information and the one or more logical channel attribute indication information. The configuration indication information is used to indicate configuration characteristics of sidelink resources, and the attribute indication information for each logical channel is used to indicate whether the data for each logical channel requires HARQ feedback.

The transmission module 402 is configured to transmit data of the target logical channel using sidelink resources.

In one embodiment of the invention, the configuration directive information includes:
information about whether the sidelink resource is configured with a corresponding physical sidelink feedback channel (PSFCH) resource;
information about whether the sidelink resource is configured with a corresponding physical uplink control channel (PUCCH) resource;
information about the type of data that can be transmitted by the sidelink resource,
The types include at least one of a type that requires HARQ feedback and a type that does not require HARQ feedback.

In one embodiment of the present invention, the determination module 402 determines the logical channel as the target logical channel if the information indicated in the configuration indication information satisfies the first condition, the attribute indication information indicates that HARQ feedback is not required. configured to

In one embodiment of the invention, the first condition is
The configuration indication information indicates that the sidelink resource does not have a corresponding PSFCH resource configured;
The configuration indication information indicates that the corresponding PUCCH resource is not configured in the sidelink resource;
the configuration indication information indicates that a type of data that can be transmitted by the sidelink re-resource is a type that does not require HARQ feedback.

In one embodiment of the present invention, the determination module 402 determines the logical channel as the target logical channel if the information indicated by the configuration indication information satisfies the second condition, the attribute indication information indicates that HARQ feedback is required. configured to

In one embodiment of the present invention, the second condition includes configuration indication information indicating that the type of data that can be transmitted by said sidelink re-resources is a type that requires HARQ feedback.

In one embodiment of the invention, the decision module 402 determines that if the information indicated by the configuration indication information satisfies the third condition, the attribute indication information is a logical channel indicating that the attribute indication information requires HARQ feedback, or the attribute indication information is a logical channel indicating that the attribute indication information requires HARQ feedback. It is configured to determine a logical channel indicating no need for HARQ feedback as a target logical channel.

In one embodiment of the invention, the third condition is
configuration indication information indicating that types of data that can be transmitted by the sidelink re-resources include types that require HARQ feedback and types that do not require HARQ feedback;
configuration indication information indicating that the sidelink resource is configured with a corresponding PSFCH resource;
configuration indication information indicates that the sidelink resource is configured with a corresponding PUCCH resource.

In one embodiment of the present invention, the determining module 402 is configured to preferentially determine as the target logical channel a logical channel whose attribute indication information indicates that HARQ feedback is required.

In one embodiment of the invention, the determination module 402 determines that the attribute indication information requires HARQ feedback if one or more logical channels do not have the attribute indication information indicating that HARQ feedback is required. It is configured to determine the logical channel indicating that it will not be the target logical channel.

In one embodiment of the invention, the determination module 402 indicates to one or more logical channels that the attribute indication information requires HARQ feedback and that the attribute indication information does not require HARQ feedback. If the logical channel indicating that the attribute indicates that HARQ feedback is required and the logical channel that indicates that the attribute indication information indicates that HARQ feedback is required and the logical channel that indicates that the attribute indication information does not require HARQ feedback are the same, then the attribute It is configured to determine a logical channel indicating that the indication information requires HARQ feedback as a target logical channel.

In one embodiment of the invention, the determination module 402 indicates to one or more logical channels that the attribute indication information requires HARQ feedback and that the attribute indication information does not require HARQ feedback. If the logical channel indicated by the attribute indication information exists at the same time and the priority of the logical channel indicating that the attribute indication information requires HARQ feedback is different from the priority of the logical channel indicating that the attribute indication information does not require HARQ feedback, priority is given. configured to determine the logical channel with the higher degree as the target logical channel.

In one embodiment of the invention, a sidelink resource is a resource assigned by a base station to a user equipment (UE); alternatively, a sidelink resource is a resource selected by a UE from a sidelink resource pool.

In one embodiment of the present invention, the determination module 402 determines that the attribute indication information requires HARQ feedback if the configuration indication information indicates that the sidelink resource is configured with a corresponding PSFCH resource. The indicated logical channel is preferentially determined as the target logical channel.

In one embodiment of the present invention, the determination module 402 determines that the attribute indication information requires HARQ feedback if the configuration indication information indicates that the sidelink resource is configured with a corresponding PUCCH resource. The indicated logical channel is preferentially determined as the target logical channel.

In one embodiment of the present invention, the determining module 402 determines that the attribute indication information does not require HARQ feedback if the configuration indication information indicates that the corresponding PSFCH resource is not configured for said sidelink resource. It is configured to determine the indicated logical channel as said target logical channel.

In one embodiment of the present invention, the determination module 402 determines that the attribute indication information does not require HARQ feedback if the configuration indication information indicates that the sidelink resource does not have a corresponding PUCCH resource configured. It is configured to determine the indicated logical channel as said target logical channel.

In one embodiment of the present invention, the determining module 402 determines that if the configuration indication information indicates that the type of data that can be transmitted by the sidelink re-resource is a type that does not require HARQ feedback, the attribute indication information is HARQ determining a logical channel indicating that no feedback is required as the target logical channel; the configuration indication information indicates that the type of data that can be transmitted by the sidelink re-resource is the type that requires HARQ feedback. if the attribute indication information indicates that HARQ feedback is required, determine the logical channel as the target logical channel; and a type that does not require HARQ feedback, the logical channel whose attribute indication information indicates that HARQ feedback is required is preferentially determined as the target logical channel.

FIG. 5 shows a block diagram of another terminal device 500 provided by an embodiment of the present invention. As shown in FIG. 5, the terminal device 500 can optionally further include a receiving module 403 and a transmitting module 404 in addition to each module included in the terminal device 400 .

The receiving module 403 is configured to receive said configuration indication information sent from lower layers.

The sending module 404 is configured to send attribute indication information of the target logical channel to lower layers.

The above division of each module in the terminal equipment is for illustrative purposes only. In other embodiments, the terminal equipment can be divided into different modules as needed to perform all or part of the terminal equipment functions.

The specific limitations of terminal equipment can refer to the above limitations on data transmission methods, which are not repeated here. Each module of the terminal equipment described above may be implemented wholly or partially by software, hardware, and combinations thereof. Each of the above modules can be embedded in the processor of the terminal equipment in the form of hardware, or can be arranged independently of the processor of the terminal equipment, or can be in the form of software, so that the processor can call and execute the corresponding operations. can be stored in the memory of the terminal device.

In one embodiment, a terminal device is provided, the internal structure of which is as shown in FIG. Terminal equipment includes a processor, memory, and network interface connected via a system bus. The terminal device's processor provides computing and control functions. The memory of the terminal device includes non-volatile storage media and internal memory. A non-volatile storage medium stores an operating system, computer programs, and databases. The internal memory provides an environment for executing operating systems and computer programs on non-volatile storage media. A database of the terminal device stores resource query processing data. A network interface of a terminal equipment is used to communicate with external terminal equipment via a network connection. A computer program is executed by a processor to implement a data transmission method.

Persons skilled in the art can understand that the structure shown in FIG. 6 is only a block diagram of the partial structure related to the solution of the present invention, and does not constitute a limitation to the terminal equipment to which the solution of the present invention is applied. can. Particular terminal equipment may include more or fewer components than those shown in the figures, or may combine certain components or have a different arrangement of components.

An embodiment of the present invention provides a terminal device including a memory and a processor. The memory stores the computer program, and the processor is configured to execute the computer program to perform the method set forth in any of the above method embodiments.

For example, a processor executes a computer program to
determining a target logical channel from the one or more logical channels according to sidelink resource configuration indication information and one or more logical channel attribute indication information;
using the sidelink resource to transmit data for the target logical channel;
Configuration indication information is used to indicate configuration characteristics of said sidelink resources, and attribute indication information of each logical channel is used to indicate whether data of each said logical channel requires HARQ feedback. .

The implementation principles and technical effects of the terminal equipment provided by the foregoing embodiments are similar to those of the foregoing method embodiments, and are not repeated herein.

In one embodiment of the present invention, a computer readable storage medium having a computer program stored thereon is provided. The computer program, when executed by a processor, is configured to perform the method set forth in any of the above method embodiments.

For example, a computer program, when executed by a processor,
determining a target logical channel from the one or more logical channels according to sidelink resource configuration indication information and one or more logical channel attribute indication information;
transmitting data for the target logical channel using the sidelink resource;
Configuration indication information is used to indicate configuration characteristics of said sidelink resources, and attribute indication information of each logical channel is used to indicate whether data of each said logical channel requires HARQ feedback. .

The implementation principles and technical effects of the computer-readable storage medium provided by the aforementioned embodiments are similar to those of the aforementioned method embodiments, and are not repeated herein.

In one embodiment of the present invention, a chip containing programmable logic and/or program instructions is provided. When the chip is run, the methods shown in any of the above method embodiments are performed.

For example, when the chip runs
determining a target logical channel from the one or more logical channels according to sidelink resource configuration indication information and one or more logical channel attribute indication information;
transmitting data for the target logical channel using the sidelink resource;
Configuration indication information is used to indicate configuration characteristics of said sidelink resources, and attribute indication information of each logical channel is used to indicate whether data of each said logical channel requires HARQ feedback. .

The chip implementation principle and technical effects provided by the foregoing embodiments are similar to those of the foregoing method embodiments and are not repeated herein.

Those skilled in the art can understand that all or part of the process of implementing the methods of the above embodiments can be implemented by instructing relevant hardware via a computer program. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, the computer program can include the processes as described in each of the above method embodiments. Any reference to memory, storage, databases, or other media used in embodiments provided by the invention may include non-volatile and/or volatile memory. Nonvolatile memory may include read only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RAM) or external buffer memory. By way of example and not limitation, RAM may include static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDR SDRAM), extended SDRAM (ESDRAM), Synchlink DRAM (SLDRAM), rambus Available in direct RAM (RDRAM), direct rambus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

It is understood that the terms "first", "second", etc. used in the present invention may be used herein to describe various devices, but these devices are not limited by these terms. want to be These terms are only used to distinguish the first device from another device. For example, a first UE could be called a second UE, and, similarly, a second UE could be called a first UE, without departing from the scope of the present invention. The first UE and the second UE are both UEs, but not the same UE.

Although the above embodiments represent only some embodiments of the present invention, and the description thereof is relatively specific and detailed, they should not be construed as limitations on the patented scope of the present invention. It should be noted for those skilled in the art that some modifications and improvements can be made without departing from the inventive concept within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the attached claims.

Claims (42)

determining a target logical channel from the one or more logical channels according to sidelink resource configuration indication information and one or more logical channel attribute indication information;
transmitting data for the target logical channel using the sidelink resource;
The configuration indication information is used to indicate configuration characteristics of the sidelink resources, and the attribute indication information of each logical channel is used to indicate whether data of each logical channel requires HARQ feedback. A data transmission method characterized by: The configuration directive information includes:
information about whether the sidelink resource is configured with a corresponding physical sidelink feedback channel (PSFCH) resource;
information about whether the sidelink resource is configured with a corresponding physical uplink control channel (PUCCH) resource;
information about the type of data that can be transmitted by the sidelink resource, and
2. The method of claim 1, wherein the types include at least one of a type requiring HARQ feedback and a type not requiring HARQ feedback. 3. A method according to claim 1 or 2, further comprising receiving the configuration directive information sent from lower layers. 3. A method according to claim 1 or 2, further comprising transmitting attribute indication information of said target logical channel to lower layers. determining a target logical channel from the one or more logical channels according to the sidelink resource configuration indication information and the one or more logical channel attribute indication information;
determining, as the target logical channel, a logical channel whose attribute indication information indicates that HARQ feedback is not required when information indicated by the configuration indication information satisfies a first condition. 2. The method described in 2. The first condition is
The configuration indication information indicates that the sidelink resource does not have a corresponding PSFCH resource configured;
The configuration indication information indicates that the corresponding PUCCH resource is not configured in the sidelink resource;
The configuration indication information indicates at least one of indicating that a type of data that can be transmitted by the sidelink re-resource is a type that does not require HARQ feedback. described method. determining a target logical channel from the one or more logical channels according to the sidelink resource configuration indication information and the one or more logical channel attribute indication information;
determining a logical channel indicating that the attribute indication information requires HARQ feedback as the target logical channel if the information indicated by the configuration indication information satisfies a second condition. 2. The method described in 2. The second condition is
8. The method of claim 7, wherein the configuration indication information comprises indicating that types of data that can be transmitted by the sidelink re-resources are types that require HARQ feedback. determining a target logical channel from the one or more logical channels according to the sidelink resource configuration indication information and the one or more logical channel attribute indication information;
If the information indicated by said configuration indication information satisfies the third condition, a logical channel indicating that the attribute indication information requires HARQ feedback or a logical channel indicating that the attribute indication information does not require HARQ feedback. 3. The method of claim 2, comprising determining the target logical channel. The third condition is
the configuration indication information indicating that types of data that can be transmitted by the sidelink re-resources include types that require HARQ feedback and types that do not require HARQ feedback;
The configuration indication information indicates that a corresponding PSFCH resource is configured in the sidelink resource;
10. The method of claim 9, wherein the configuration indication information indicates at least one of indicating that the sidelink resource is configured with a corresponding PUCCH resource. Determining a logical channel that the attribute indication information indicates that HARQ feedback is required or a logical channel that the attribute indication information indicates that HARQ feedback is not required is the target logical channel;
11. The method of claim 9 or 10, comprising preferentially determining as the target logical channel a logical channel whose attribute indication information indicates that HARQ feedback is required. Prioritizing a logical channel indicating that the attribute indication information requires HARQ feedback as the target logical channel includes:
If the one or more logical channels do not have a logical channel whose attribute indication information indicates that HARQ feedback is required, a logical channel whose attribute indication information indicates that HARQ feedback is not required is defined as the target logical channel. 12. The method of claim 11, comprising determining. Prioritizing a logical channel indicating that the attribute indication information requires HARQ feedback as the target logical channel includes:
In the one or more logical channels, a logical channel whose attribute indication information indicates that HARQ feedback is required and a logical channel whose attribute indication information indicates that HARQ feedback is not required exist at the same time, and If the logical channel indicating that the indication information requires HARQ feedback and the logical channel indicating that the attribute indication information does not require HARQ feedback have the same priority, the attribute indication information indicates that HARQ feedback is required. 12. The method of claim 11, comprising determining a logical channel as the target logical channel. Determining a logical channel that the attribute indication information indicates that HARQ feedback is required or a logical channel that the attribute indication information indicates that HARQ feedback is not required is the target logical channel;
In the one or more logical channels, a logical channel whose attribute indication information indicates that HARQ feedback is required and a logical channel whose attribute indication information indicates that HARQ feedback is not required exist at the same time, and If the logical channel indicating that the indication information requires HARQ feedback and the logical channel indicating that the attribute indication information indicates that HARQ feedback is not required have different priorities, the logical channel with the higher priority is determined as the target logical channel. 11. A method according to claim 9 or 10, comprising: 3. The sidelink resource is a resource allocated to a user equipment (UE) by a base station, or the sidelink resource is a resource selected by the UE from a sidelink resource pool. 15. The method of any one of 1 to 14. determining a target logical channel from the one or more logical channels according to the sidelink resource configuration indication information and the one or more logical channel attribute indication information;
If the configuration indication information indicates that a corresponding PSFCH resource is configured in the sidelink resource, preferentially select a logical channel indicating that the attribute indication information requires HARQ feedback as the target logical channel. 16. A method according to any preceding claim, comprising determining. determining a target logical channel from the one or more logical channels according to the sidelink resource configuration indication information and the one or more logical channel attribute indication information;
If the configuration indication information indicates that the PUCCH resource corresponding to the sidelink resource is configured, preferentially the logical channel indicating that the attribute indication information requires HARQ feedback as the target logical channel. 16. A method according to any preceding claim, comprising determining. determining a target logical channel from the one or more logical channels according to the sidelink resource configuration indication information and the one or more logical channel attribute indication information;
If the configuration indication information indicates that the sidelink resource does not have a corresponding PSFCH resource configured, determining a logical channel indicating that the attribute indication information does not require HARQ feedback as the target logical channel. 16. A method according to any preceding claim, comprising: determining a target logical channel from the one or more logical channels according to the sidelink resource configuration indication information and the one or more logical channel attribute indication information;
If the configuration indication information indicates that the sidelink resource does not have a corresponding PUCCH resource configured, determining a logical channel indicating that the attribute indication information does not require HARQ feedback as the target logical channel. 16. A method according to any preceding claim, comprising: determining a target logical channel from the one or more logical channels according to the sidelink resource configuration indication information and the one or more logical channel attribute indication information;
If the configuration indication information indicates that the type of data that can be transmitted by the sidelink re-resource is a type that does not require HARQ feedback, the attribute indication information indicates that HARQ feedback is not required for the logical channel. determining a target logical channel;
If the configuration indication information indicates that the type of data that can be transmitted by the sidelink re-resource is a type that requires HARQ feedback, the attribute indication information indicates that HARQ feedback is required for the logical channel. determining a target logical channel;
If the configuration indication information indicates that the types of data that can be transmitted by the sidelink re-resources include types that require HARQ feedback and types that do not require HARQ feedback, attribute indication information indicates that HARQ feedback is required. 16. A method according to any one of claims 1 to 15, comprising preferentially determining as said target logical channel a logical channel indicating to do so. a determination module configured to determine a target logical channel from the one or more logical channels according to sidelink resource configuration indication information and one or more logical channel attribute indication information;
a transmission module configured to transmit data of the target logical channel using the sidelink resource;
The configuration indication information is used to indicate configuration characteristics of the sidelink resources, and the attribute indication information of each logical channel is used to indicate whether data of each logical channel requires HARQ feedback. A terminal device characterized by: The configuration directive information includes:
information about whether the sidelink resource is configured with a corresponding physical sidelink feedback channel (PSFCH) resource;
information about whether the sidelink resource is configured with a corresponding physical uplink control channel (PUCCH) resource;
information about the type of data that can be transmitted by the sidelink resource, and
The types include at least one of a type that requires HARQ feedback and a type that does not require HARQ feedback.
22. The terminal device according to claim 21, characterized by: including a receiving module configured to receive said configuration indication information sent from a lower layer
23. The terminal device according to claim 21 or 22, characterized by: a transmitting module configured to transmit attribute indication information of said target logical channel to lower layers;
23. The terminal device according to claim 21 or 22, characterized by: The decision module comprises:
characterized in that, when the information indicated by the configuration indication information satisfies a first condition, a logical channel indicating that the attribute indication information indicates that HARQ feedback is not required is determined as the target logical channel. The terminal device according to claim 22. The first condition is
The configuration indication information indicates that the sidelink resource does not have a corresponding PSFCH resource configured;
The configuration indication information indicates that the corresponding PUCCH resource is not configured in the sidelink resource;
The configuration indication information indicates at least one of indicating that a type of data that can be transmitted by the sidelink re-resource is a type that does not require HARQ feedback. Terminal equipment as described. The decision module comprises:
It is configured to determine a logical channel indicating that the attribute indication information requires HARQ feedback as the target logical channel when the information indicated by the configuration indication information satisfies a second condition. The terminal device according to claim 22. The second condition is
28. The terminal device of claim 27, wherein the configuration indication information includes indicating that the type of data that can be transmitted by the sidelink re-resource is a type that requires HARQ feedback. The decision module comprises:
If the information indicated by said configuration indication information satisfies the third condition, a logical channel indicating that the attribute indication information requires HARQ feedback or a logical channel indicating that the attribute indication information does not require HARQ feedback. 23. A terminal device according to claim 22, configured to determine the target logical channel. The third condition is
the configuration indication information indicating that types of data that can be transmitted by the sidelink re-resources include types that require HARQ feedback and types that do not require HARQ feedback;
The configuration indication information indicates that a corresponding PSFCH resource is configured in the sidelink resource;
30. The terminal device of claim 29, wherein the configuration indication information indicates at least one of indicating that the sidelink resource is configured with a corresponding PUCCH resource. The decision module comprises:
The terminal equipment according to claim 29 or 30, characterized in that it is configured to preferentially determine a logical channel whose attribute indication information indicates that HARQ feedback is required as the target logical channel. The decision module comprises:
If the one or more logical channels do not have a logical channel whose attribute indication information indicates that HARQ feedback is required, a logical channel whose attribute indication information indicates that HARQ feedback is not required is defined as the target logical channel. 32. A terminal device according to claim 31, characterized in that it is arranged to determine. The decision module comprises:
In the one or more logical channels, a logical channel whose attribute indication information indicates that HARQ feedback is required and a logical channel whose attribute indication information indicates that HARQ feedback is not required exist at the same time, and If the logical channel indicating that the indication information requires HARQ feedback and the logical channel indicating that the attribute indication information does not require HARQ feedback have the same priority, the attribute indication information indicates that HARQ feedback is required. 32. A terminal device according to claim 31, characterized in that it is configured to determine a logical channel as said target logical channel. The decision module comprises:
In the one or more logical channels, a logical channel whose attribute indication information indicates that HARQ feedback is required and a logical channel whose attribute indication information indicates that HARQ feedback is not required exist at the same time, and If the logical channel indicating that the indication information requires HARQ feedback and the logical channel indicating that the attribute indication information indicates that HARQ feedback is not required have different priorities, the logical channel with the higher priority is determined as the target logical channel. 31. A terminal device according to claim 29 or 30, characterized in that it is configured to: The decision module comprises:
If the configuration indication information indicates that a corresponding PSFCH resource is configured in the sidelink resource, preferentially select a logical channel indicating that the attribute indication information requires HARQ feedback as the target logical channel. 35. A terminal device as claimed in any one of claims 21 to 34, characterized in that it is arranged to determine. The decision module comprises:
If the configuration indication information indicates that the PUCCH resource corresponding to the sidelink resource is configured, preferentially the logical channel indicating that the attribute indication information requires HARQ feedback as the target logical channel. 35. A terminal device as claimed in any one of claims 21 to 34, characterized in that it is arranged to determine. The decision module comprises:
If the configuration indication information indicates that the PSFCH resource corresponding to the sidelink resource is not configured, the logical channel attribute indication information indicates that HARQ feedback is not required is determined as the target logical channel. 35. A terminal device according to any one of claims 21 to 34, characterized in that it is configured to: The decision module comprises:
If the configuration indication information indicates that the PUCCH resource corresponding to the sidelink resource is not configured, the logical channel attribute indication information indicates that HARQ feedback is not required is determined as the target logical channel. 35. A terminal device according to any one of claims 21 to 34, characterized in that it is configured to: The decision module comprises:
If the configuration indication information indicates that the type of data that can be transmitted by the sidelink re-resource is a type that does not require HARQ feedback, the attribute indication information indicates that HARQ feedback is not required for the logical channel. determine the target logical channel,
If the configuration indication information indicates that the type of data that can be transmitted by the sidelink re-resource is a type that requires HARQ feedback, the attribute indication information indicates that HARQ feedback is required for the logical channel. determine the target logical channel,
If the configuration indication information indicates that the types of data that can be transmitted by the sidelink re-resources include types that require HARQ feedback and types that do not require HARQ feedback, attribute indication information indicates that HARQ feedback is required. 35. The terminal device according to any one of claims 21 to 34, wherein the terminal device is configured to preferentially determine a logical channel indicating that the target logical channel is the target logical channel. with memory and processor,
Terminal equipment, characterized in that said memory stores a computer program and, when said processor executes said computer program, performs the steps of the method according to any one of claims 1 to 20. a computer program is stored,
A computer readable storage medium, characterized in that, when said computer program is executed by a processor, the steps of the method according to any one of claims 1 to 20 are performed. A chip containing programmable logic and/or program instructions,
A chip, characterized in that, when said chip is run, the steps of the method according to any one of claims 1 to 20 are performed.

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